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Sept. 25, 1923.

C. W. WEISS TRANSMISSION DEVICE Filed Sept. 13, 1922 ATTORNEYS Patented Sept. 25, 1923.

PATENT OFFICE.

CARL W. WEISS, OF NEW YORK, N. Y.

TRANSMISSION DEVICE.

'Applicationflled September 13, 1922. Serial No. 587,896.

To all whom it may concern Be it known that I. CARL W. Wrzrss a citizen of the United States, and resident of the borough ofBrooklyn. in the city of New York and State of New York. have invented certain new and. useful Improvements in Transm ssion Devices, of which the following is a specification, reference being bad to the accompanying drawing, form- 10 ing a part hereof.

In another application of the present applicant for Letters Patent of the United States Serial No. 56 L700, filed May 31, 1922. there is shown and described and covered broadly a transmission device of novel construction together with atorque governor by. which variation of the speed ratio is effected automatically through variation of the torque or resistance of the driven element. Inthe present application there is V shown and described a transmission device of the same general character asthat shown in said application, but differing therefrom in some features of construction. together with a different embodiment of the torque governor.

The invention will be more fully explained hereinafter with referenceto the accompanying drawing in which it is illustrated and in which Figure 1 isa view of the transmission device and torque governor in sectional elevation. 7

Figure 2 is a detail view in section on the lane indicated by the broken line 22 of Figure 1. y

In the embodiment of the invention illustrated in the drawing the driving part or shaft on is shown as mounted for rotation in a fixed housing I), which supports the several working parts of the mechanism to be described. The shaft (1 has secured thereto or formed therewith 'the internally spherical driving member 0, which shown as somewhat more than hemispherical. The mutor (l which co-operates with the driving member a substantially as set forth in the application above mentioned, is armed with gripping members 6 which are supported substantially as described in said application so as to insure proper driving contact with the internally spherical memher 0. The'mutor is supported as herein-- after described, that its angular position with respect to the driving member can be varied, and is secured to the spindle f of a gear 7 1n mesh with a gear fv on ashaft f which at its other end, in the construction shown, carries a gear f in mesh with the gear f to be driven. The spindle f and the shaft. f are mounted in suitable bearingssupported by a frame 9 which in turn is mounted so as to be capable of rotation in a bearing 6 provided in the hous ing 1;. The tubular portion 9 of the frame 9 has a gear 9* which engages a gear h on a shaft h mounted in the housing or support and adapted for engagement. as at h by a means, such as the shaft h by which the shaft k can be rotated manually or at the will of the operator. A spring h bears at oneend against a fixed stop 71, and at the 7 other end against a stop h on the gear h. The spring it constitutes a means tending normally to move the mutor to the position of maximum speed, with the plane of contact of the gripping elements 6 at nearly right angles to the axis ofthe shaft a. This action is brought about through the rotation of the shaft h and gear h and the rotation of the frame 9 to such position that the mutor d will oc upy the position just described. Through the application of any suitable force to the shaft h throuah the connection h the operator can change the relative angular position of the mutor as desired, either with or against the resilient means represented by the spring h. If, in the operation of the mechanism. the resistance or torque reactance of the driven part i is increased. the gear f will tend to roll about the periphery of the gear f carrying the frame 7 in a dire tionwhich tends to place the mutor (l in its zero position, with the plane of the gripping elements 6 including the axis of the shaft a. This movement of the frame by the torque reactance takes place against the yielding resistance offered by the spring h and will cease when equilibrium between these opposing forces is established. ,When the resistance or torque reactance again diminishes the spring h will move the frame 9 toward the position of maximum speed to an extent determined by the relation between the resistance and the force of the spring h. In this herein; r Iclnn'n as my 1nventio'n:

device coinpris-' element to "vary the s3 Y first mentioned 'g manner the transmitted speed is reduced and the torque effort is increased in proportion to the increase of resistance or torque 'reectence.

The relative angular disposition oithe axis of the mutor supporting frame 9 and the shaft (5 is preferably about as shown.

The gears f and 7, as will be evident con stitute a convenient form of joint in which one member revolves about the axis of the other. i

It will beunderstood that various changes details of construction end arrangement can beinede to suit different conditions of use nnd'thet, except as pointed out in the claims, the invention is not limited to the precise construction shoWn"nnd described v response to. variations-in torque renctzuice,

and 11l1S *to oppose such rotation of the suppoixframe. 1 .43; power"transmission device comprisa driving element, driven element, Of Stld elements being capable oi? bechanged in position Withrespect 't-o'the other element to very thefspeed i etio of the two e'lements e gear eurriedwith the element capable of being changed in position, a second gear in mesh With'the' first and o peratively connected with the part to be driven, e rotetoble frame supporting the element capable of being changed in positioii'snd the first mentioned gear and per- .ini'ttin the first mentioned gear to roll upon the periphery of the second mentioned in responseto. variations in torque react- ;i'nce, and resilient yielding means to oppose such r'otutionof the" supporting 'l'rarrne;

3; A power transmission device "comprisinga'driving element; a driven element, one of said elementsbeing capable of beingchenged injposition with respect to the other element to vary the speed ratio of the two elements; a gear (ferried with the element capable of being changed in positionpe second gear in'mesh with the first fund operet vely connected with the part to be driven, a rotuta'ble frame supporting the element Ice peble of ibeing changed in position and the first "mentionedgear and pera pert to be driven, N v I position vltli respect to the driving element,

'lZl HlSSll with the first and operat Jnitting the first mentioned gear to roll upon the periphery of the second mentioned gear in response to variations in torque renctnnce, and manually controlled means to vurythe position 01" the supportingiiremo.

4:. A power transmission device comprisoi ssiid elements being capable of being chsngedfin position with respect to the other element to vary the speed retioo'f the two elements carried with the element capable of being changed in position at second gear ope-rs comiected'vitl the part to driven, at rotatable frame supp orting the element capable of being changed inposition and ti V I n' itting the first mentioned gear to roll upon in mesh with the first and ing a driving element, as driven element, one 7 first mentioned gear and pel the periphery of the second mentioned gear? in responsc'to variations in torque re- :iotunce, a shaft geared to said i'raine and.

a spring eppliedto said shaft to rotate the same in opposition to the torque resetsnce.

A power transmission device compris ing a spherical driving element, a mutor lniving gripping elements force-operation hericul drivingelement and sep awith the sp lg changed in relative angular e. gear czirried with theinutor a second vely conthe motor and permitting the first" gear to roll upon the periphery of the second gear heated with the part to driveinn rol'et. 1

able frame'snpportmgthe second gear and in response to variations in"torque res ucitence, andnieens to oppose. sucii rotation oi? the supporting i reme.

6. "A power transmission device oompris ing e spherical driving element s inutor having gripping elements for eo-operu'ti'on v with the sphericnl drying element and cap} eble of being changed in relative angular iosit'ionwith respect to the driving element a gear carried with the niutor, n second in mesh with. thefirst end operetlvely connected 'withthe part to be driven, a rotat able frame supporting the second gear and the mut'or and permitting the first gear to roll upon the periphery of the second gear in response to variations in torque resctnnc'e,

and resilienueyielding means to oppose such rotation of the supportingfreme.

7, power transmission device compris 'ing a spherical. driving element,' a. inutor lmving gripping elements for CO-OPGIELU'OD with thespherical driving element and capubic or being changed in relative angular position with respect to the driving element; :1 carried with the mutor, asecond gear in'mesli with the first and operativelyic onnected'vvith the part to be driven, a rotatable frame supporting the second gear'end the inutor and pern'iitting the first gear to roll upon the periphery of the second gear in response to variations in torque reactance, and manually controlled means to vary the position of the supporting frame.

oosition with res )GCll the drivin element a gear carried with the mutor, a second gear in mesh with the first and operatively connected with the part to be driven, a rotatable frame supporting the second gear and the mutor and permitting the first gear to roll upon the periphery of the second gear in response to variations in torque reactanoe, a shaft geared to said frame, and means to rotate said shaft.

9. A power transmission device comprising a spherical driving element, a mutor having gripping elements for co-operation with the spherical driving element and capable of being changed in relative angular position with respect to the driving element, a gear carried with the mutor, a second gear in mesh with the first and operatively connected with the part to be driven,

a rotatable frame'supporting the second gear and the mutor and permitting the first gear to roll upon the periphery of the second gear in response to variations in torque reactance, a shaft geared to said frame, and a spring applied to said shaft to rotate the same in opposition to the torque reactanoe.

1-0. a power transmission device comprising a driving element, a driven element, one

of said elements being capable of being changed in position with respect to the other elen'ient to vary the speed ratio of the two elements, joint comprising one member carried with the element capable of being changed in position and a second member in operative relation with the first and operatively connected with the part to be driven, a. rotatable frame supporting the element capable of being changed in position and the first mentioned member and permitting the mentioned member to revolve about the axis of the second mentioned member in response to variations in torque reactance, and means to vary the position of the supporting rraine.

11. A power transmission device comprising a driving element, a driven element, one of said elements being capable of being changed in position with respect to the other element to vary the speed ratio of the two elements, a joint comprising one member carried with the element capable of being changed in position nd a second memher in operative relation with the first and operatively connected with the part to be driven, a rotatable frame supporting the element capable of being ohangedin position and the first mentioned member and permitting the first mentioned member'to revolve about the xis of the second mentioned member in response to variations in torque reactance, and means to oppose the rotation of the supporting frame.

12. A power transmission device comprising a driving element, a driven element, one of said elements being capable of being changed in position with respect to the other element to vary the speed ratio of the two elements, a joint comprising one member carried with the element capable of being changed in position and a second member in operative relation with the first and operatively connected with the part to be driven, a rotatable frame supporting the element capable of being changed in position and the first mentioned member and permitting the first mentioned member to revolve about the axis of the second mentioned member in response to variations in torque reaotance, and a spring applied to the frame to oppose rotation thereof.

This specification signed the 24 day of August A. D. 1922.

CARL W. WEISS. 

